Full Breakdown
Potential Super El Niño of 2026: Forecasts, Impacts, and Uncertainties
5/7/2026, 5:35:12 AM
Forecast Overview
ECMWF’s May model projects Pacific sea-surface temperatures up to 3 °C above average by autumn, meeting the super El Niño threshold. NOAA’s Climate Prediction Center assigns a 60 % chance of El Niño forming May-July and a 25 % chance of a strong episode lasting through the year.
ENSO Context and Key Agencies
El Niño and La Niña are opposite phases of the 2-7-year El Niño-Southern Oscillation. After two years of La Niña, the system is now ENSO-neutral. Forecasts come from ECMWF and NOAA CPC; analysts include Clara Deser (NCAR), Jon Gottschalck (NOAA CPC), Pam Knox (U. Georgia), and Joaquim Ballabrera (CSIC).
Probabilities and Anomalies
ECMWF sees a 100 % chance of a super El Niño; NOAA CPC sees a 60 % chance of El Niño and a 25 % chance of a strong event. The WMO notes a 40 % probability of widespread temperature rise. Washington state faces a 61 % chance of influence and a 25 % chance of a strong event.
Global and Regional Impacts
A strong El Niño lifts global temperatures, raising the risk of 2027 record highs. In the Atlantic, stronger upper-level winds should suppress hurricanes; the Eastern Pacific may see more cyclones. In the U.S., the Southeast may get wetter, cooler winters and fewer hurricanes, while Georgia’s Level One drought persists. Washington’s snowpack is ~32 % of average, indicating a drier winter. Sierra Nevada impacts remain uncertain, likely delayed.
Official Statements & Responses
ECMWF calls the projected 3 °C anomaly “near historic extremes.” NOAA CPC describes sea-surface warming as “near-to-above average” and notes the ENSO-neutral phase limits immediate regional signals. Gottschalck says ENSO did not affect the April-June Sierra outlook; Deser warns the shifted climate baseline reduces confidence in analog forecasts.
Criticism and Conflicts
ECMWF’s near-certain super outlook contrasts with NOAA’s 25 % chance of a strong event, reflecting divergent model assumptions. Regional forecasts differ: Sierra Nevada signals low confidence, while Georgia’s climatology office cautions early-season hurricane suppression may not guarantee a quiet season. Scientists remain split on the influence of anthropogenic warming on super-El Niño odds.
Verbatim Quotes
- “We are now in a different base line climate,” — Clara Deser, NCAR
- “ENSO did not play a role in the April-June temperature or precipitation outlooks,” — Jon Gottschalck, NOAA CPC
- “When we have an El Niño, that wind is strong and it's right over the southeast part of the United States,” — Pam Knox, U. Georgia
- “This is "Code Red" for the Earth's climate system going into Summer 2026 --> suppressed Atlantic hurricane activity.” — NBC News, Science Desk
Outlook and Monitoring
Forecasters will monitor sea-surface temperature anomalies weekly, with the first El Niño indicator expected by late July. NOAA and ECMWF will continue to refine their outlooks as the season progresses, and impact assessments will be issued as the event nears its peak.
